Lavinio (Lido di Enea) is a small sea side tourist town in the Lazio region of Italy, 50 kilometres (31 mi) southwest of Rome.

The name is derived from ancient Latin settlement of Lavinium, now 6.0 kilometres (3.7 mi) from the sea, and part of the nearby municipality of Pomezia.

The foundation of Lavinium is mentioned prominently in the great Roman epic, the Aeneid by the Mantuan poet Publius Vergilius Maro (Virgil).

Lavinio adjoins the 42-hectare (104-acre) regional park of Tor Caldara, which features a medieval watch tower that was built in the Middle Ages to defend the area from the frequent incursions of Saracens and later from the Arabic pirates.

In 1565 the tower was restored by Marcantonio Colonna, of the powerful noble family and large fief holders in Lazio and the Papal States.